en.osm.town is one of the many independent Mastodon servers you can use to participate in the fediverse.
An independent, community of OpenStreetMap people on the Fediverse/Mastodon. Funding graciously provided by the OpenStreetMap Foundation.

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DoudouOSM

@schestowitz OSM is centralized as well. Centralized is not automatically a bad thing. And OSM, and open source in general, don't preclude commercial derivatives.